Sharp EL9900C - Graphing Calc With 2 Sided Keypad Lrg 22 CHAR/8 Line Display... User manual

Sharp EL-9900
Graphing Calculator
Basic Keyboard Activities
General Mathematics
Algebra
Programming
Advanced Keyboard Activities
Algebra
Calculus
Statistics
Trigonometry
Programming

Sharp EL-9900
Graphing Calculator
Basic Keypad
EL-9900
SUB SPLIT TBLSET DRAW FORMAT CALC
OPTION LIST CLIP
OFF A-LOCK
STAT
PLOT
SLIDE
SHOW
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GRAPH
TABLE
WINDOW
ZOOM
TRACE
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1
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Add 9 to 27 twice.
STEP 1: Enter 27 by pressing 2 7 .
STEP 2: Add by pressing the + key.
STEP 3: Enter 9 by pressing 9 .
STEP 4: Find the first sum by pressing the ENTER key.
STEP 5: Add 9 again by pressing + 9 ENTER .
2. Multiply to . Then, convert to a decimal.
STEP 1: Enter by pressing 3 a/b 4 .
STEP 2: Multiply by pressing the × key.
STEP 3: Enter by pressing 5 a/b 2 .
STEP 4: Find the product by pressing ENTER .
STEP 5: Convert to an improper fraction by pressing ➞b/c ENTER .
STEP 6: Convert to a mixed number by pressing ➞ab/c ENTER .
BASIC ARITHMETIC
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3
45
2
3
4
5
2
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
A trapezoid is a four-sided figure where two of the sides are parallel
and the other two sides are not parallel.
The area of a trapezoid is defined to be Area = ( )•(b1+ b2) where h
is the height or distance between the parallel sides b1and b2.
1. Calculate ( ) ×(3 + 4).
STEP 1: Enter ( ) by pressing (5 a/b 2 ).
STEP 2: Multiply by pressing the ×key.
STEP 3: Enter (3 + 4) by pressing (3 + 4 ).
STEP 4: Calculate by pressing the ENTER key.
The answer is 17.5
2. Edit the previous calculation to find ( )•(7 + 4).
STEP 1: Edit the previous calculation by pressing 2ndF ENTRY
to move the blinking cursor to highlight the 3.
STEP 2: Delete the 3 by pressing DEL to backspace delete.
STEP 3: Insert the 7 by pressing 7 .
STEP 4: Calculate by pressing the ENTER key.
The answer is 27.5.
PARENTHESES AND EDITING
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h
2
5
2
5
2
5
2
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▼
▼ ▼
h
b1
b2
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
Mixtures contain two or more components. Percents are often used to
express the amount of a component in a mixture.
1. Find 30% of 400.
STEP 1: Enter 400 by pressing 4 0 0 .
STEP 2: Multiply by pressing the ×key.
STEP 3: Enter 30% by pressing 3 0 2ndF % ENTER .
The answer is 120.
2. Find what percent of 500 is 150.
STEP 1: Enter 150 by pressing 1 5 0 .
STEP 2: Divide by pressing the ÷ key.
STEP 3: Enter 500 by pressing 5 0 0 .
STEP 4: Calculate by percentage by pressing 2ndF % ENTER .
The answer is 30%.
PERCENTS
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
3. Add 20% to 300.
STEP 1: Enter 300 by pressing 3 0 0 .
STEP 2: Add by pressing the + key.
STEP 3: Enter 20% by pressing 2 0 2ndF % ×
3 0 0 ENTER .
The answer is 360.
4. Subtract 40% from 200.
STEP 1: Enter 200 by pressing 2 0 0 .
STEP 2: Subtract by pressing the – key.
STEP 3: Enter 40% by pressing 4 0 2ndF % ×
2 0 0 ENTER .
The answer is 120.
PERCENTS (continued)

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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Calculate 2 • 3 and store the value in A. Recall the A to
see the product stored in A.
STEP 1: Multiply 2 and 3 by pressing 2 ×3 ENTER .
The product is 6.
STEP 2: Store 6 into A by pressing STO ALPHA A ENTER .
STEP 3: Clear the screen by pressing CL .
STEP 4: Recall A by pressing ALPHA A ENTER .
2. Calculate 3 • 5 and store the value in M. Calculate 4 • 5
and add this product to M. Then, recall the M to see the
sum of the products.
STEP 1: Multiply 3 and 5 by pressing 3 ×5 ENTER .
The product is 15.
STEP 2: Store 15 into M by pressing STO ALPHA M ENTER .
STEP 3: Multiply 4 and 5 by pressing 4 ×5 ENTER .
The product is 20.
STEP 4: Add 20 to M by pressing + ALPHA M .
The sum of the products is 35.
3. Recall the previous answer.
STEP 1: With the display screen cleared, recall the previous answer
by pressing 2ndF ANS ENTER .
MEMORY USAGE
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Calculate 152.
STEP 1: Enter 15 by pressing 1 5 .
STEP 2: Square by pressing the x2key.
STEP 3: Calculate by pressing the ENTER key.
The answer is 225.
2. Calculate 34.
STEP 1: Enter 3 by pressing 3 .
STEP 2: Exponentiate by pressing the abkey.
STEP 3: Enter 4 by pressing 4 .
STEP 4: Calculate by pressing the ENTER key.
The answer is 81.
3. Calculate √ 196.
STEP 1: Enter the square root by pressing 2ndF √.
STEP 2: Enter 196 by pressing 1 9 6 .
STEP 3: Calculate by pressing the ENTER key.
The answer is 14.
POWERS AND ROOTS
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Find log 3.
STEP 1: Enter log by pressing MATH A 4 .
STEP 2: Enter 3 by pressing the 3 key.
STEP 3: Calculate by pressing the ENTER key.
The answer is 0.4771.
2. Find 10(3÷4).
STEP 1: Enter 10 by pressing MATH A 5 .
STEP 2: Enter (3 ÷ 4) by pressing 3 ÷ 4 .
STEP 3: Calculate by pressing the ENTER key.
The answer is 5.6234.
LOGARITHMS AND EXPONENTIALS
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
The definitions of the trigonometric functions with regard to the right triangle
can be used to find distances between points. The sine function is defined to be
opposite side/hypotenuse, the cosine function is adjacent side/hypotenuse, and
the tangent function is opposite side/adjacent side.
Put the calclator in degree mode by pressing 2ndF SETUP B 1 .
1. Find sin 30°.
STEP 1: Press to access the calculation screen.
STEP 2: Enter sin 30 by pressing MATH Α 1 3 0 .
STEP 3: Calculate by pressing the ENTER key.
The answer is 0.5.
2. Find 3cos 20°.
STEP 1: Enter 3 cos 20 by pressing 3 MATH Α 22 0 .
STEP 2: Calculate by pressing the ENTER key.
The answer is 2.819
3. Find tan 50°.
STEP 1: Enter tan 50 by pressing MATH Α 3 5 0 .
STEP 2: Calculate by pressing the ENTER key.
The answer is 1.19.
Remember that cotangent = 1/tangent, secant = 1/cosine, and
cosecant = 1/sine.
TRIGONOMETRIC FUNCTIONS
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hypotenuse opposite side
adjacent side
θ

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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Put the calclator in radian mode by pressing 2ndF SETUP B 2 .
1. Find sin 2.1.
STEP 1: Press to access the calculation screen.
STEP 2: Enter sin 2.1 by pressing MATH Α 1 2 .1.
STEP 3: Calculate by pressing the ENTER key.
The answer is .8632
2. Find cos (-1.7).
STEP 1: Enter 3 cos (-1.7) by pressing 3 MATH Α 2(−) 1
.7.
STEP 2: Calculate by pressing the ENTER key.
The answer is -.3865
3. Find tan 0.
STEP 1: Enter tan 0 by pressing MATH Α 30 .
STEP 2: Calculate by pressing the ENTER key.
The answer is zero.
TRIGONOMETRIC FUNCTIONS (continued)
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10
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Angles can be expressed in degrees and radians. Degrees can be expressed in
either decimal degrees or degrees-minutes-seconds. The sum of the angles of a
triangle is 180° or πradians.
Press to access the calculation screen.
1. Convert 30° to radians.
Put the calclator in radian mode by pressing 2ndF SETUP B 2 .
STEP 1: Enter 30° by pressing 3 0 MATH Ε 1 .
STEP 2: Convert to radians by pressing ENTER .
The answer is 0.5236.
2. Convert 50°35’ to decimal degrees.
STEP 1: Enter 50°35’ by pressing 5 0 MATH E 1 3 5
MATH Ε 2 .
STEP 2: Calculate decimal degrees by pressing ENTER .
The answer is 50.5833.
ANGLE CONVERSIONS
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
3. Convert 40.235° to degrees-minutes-seconds.
STEP 1: Enter 40.235° by pressing 4 0.235.
STEP 2: Calculate degrees-minutes-seconds by pressing
MATH D 2 ENTER .
The answer is 40°14’06”.
4. Convert 1.25 radians to degrees.
Put the calclator in degree mode by pressing 2ndF SETUP B 1 .
STEP 1: Enter 1.25 radians by pressing 1 .2 5 MATH
E4.
STEP 2: Convert to degrees by pressing ENTER .
The answer is 71.6°.
ANGLE CONVERSIONS (continued)
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Find five factorial or 5!.
STEP 1: Enter 5! by pressing 5 MATH C 7 .
STEP 2: Calculate by pressing ENTER .
The answer is 120.
2. Find the number of combinations of 2 from a group of 5.
STEP 1: Enter the large number 5 by pressing 5 .
STEP 2: Enter the combination symbol by pressing MATH C 6 .
STEP 3: Enter the small number 2 and calculate by pressing
2 ENTER .
The answer is 10.
Permutations are found in the same manner.
3. Randomly select a person from an ordered group of 10.
STEP 1: Access the random integer command by pressing
MATH C 2 .
STEP 2: Enter the lower bound of 1 by pressing 1 ,.
STEP 3: Enter the upper bound of 10 by pressing 1 0 ).
STEP 4: Calculate the random person by pressing ENTER .
Answers will vary.
PROBABILITY
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
1. Calculate statistics for a one-variable data set.
STEP 1: Turn the calculator on and press STAT to enter the statistics menu.
Press A (EDIT) ENTER to view the statistics data entry screen.
If there is a data set present within the lists on your calculator, use the
arrow keys to move to the list, if necessary, and press ▲to highlight the
list label. Press DEL ENTER to delete the old data. Repeat for other lists
of data.
STEP 2: Move the highlighter to the cell directly below the L1 in the table.
Enter the following data set:
25 32 28 33 31 27 40 38 29 30
STEP 3: Check the data you have entered and correct any errors you may find.
Press 2ndF QUIT to exit the data entry screen. To calculate the numerical
descriptions of the data set, press STAT C (CALC) and 1 (1_Stats).
Press ENTER and the statistical results will appear.
2. The statistics displayed are:
1. the average or mean value of the data set, ;
2. the standard deviation assuming the data set is a sample from a
population, sx;
3. the standard deviation assuming the data set represents the entire
population, σx;
4. the sum of the data values, ∑x;
5. the sum of the squared data values, ∑x2;
Press ▼five times to see more of the statistics.
6. the number of values in the data set, n;
7. the minimum value in the data set, xmin;
8. the first quartile (25th percentile), Q1;
9. the median (50th percentile), Med;
10. the third quartile (75th percentile), Q3; and
Press ▼one more time to see the final statistic.
11. the maximum value in the data set, xmax.
ONE-VARIABLE STATISTICS
x

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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for creating a data set's histogram
STEP 1: Turn the calculator on, press STAT A (EDIT) ENTER to view the
statistics data entry screen. Delete old data sets.
STEP 2: Move the highlighter to the cell directly below the L1 in the table and enter
the following data set:
15 28 17 36 38 19 13 25 27 41
STEP 3: Check the data you have entered by pressing ▲to move back through
the data.
STEP 4: To graph a histogram that represents the data set, you must first press
STAT PLOT A (PLOT1) and press ENTER . A PLOT1 setup screen
will appear. Turn the plot on by pressing ENTER . Select one-variable
data by pressing ▼ENTER . Set the list to L1 by pressing ▼
2ndF L1 ENTER . A blank Freq: prompt indicates the data is non-weighted
and the frequencies are one. Choose the histogram graph by pressing ▼
STAT PLOT A (HIST) and 1 (Hist).
STEP 5: Set the calculator to rectangular graphing by pressing 2ndF SET UP
E(COORD) 1(Rect) and press 2ndF QUIT .
STEP 6: Set the viewing window by pressing WINDOW . Set the horizontal axis to
10 < x< 50 with Xscl = 10 by pressing 1 0 ENTER 5 0 ENTER 1
0 ENTER . Set the vertical axis to 0 < y< 5 with Yscl = 1 by pressing 0
ENTER 5 ENTER 1 ENTER .
View the histogram by pressing GRAPH .
HISTOGRAM FOR A
ONE-VARIABLE DATA SET

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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for creating a data set's box-and-whisker chart
STEP 1: Press STAT to enter the statistics menu. Delete old data and enter the
following data set in L1:
1112222344
STEP 2: To construct a box-and-whisker chart, first press STAT PLOT A
ENTER . Press ENTER to turn PLOT1 on. Press ▼ENTER to choose
one-variable data. Press ▼2ndF L1 ENTER to enter L1 as the data
list. Leave the Freq prompt blank. Set the graph to a box-and-whisker
chart by pressing ▼STAT PLOT E (BOX) 1Box.
STEP 3: In the example, the data is discrete with a smallest value of 1 and a largest
value of 4. Set the viewing window to 0 < x< 5 with Xscl = 1. Next, set the
vertical axis to 0 < y< 1 with Yscl = 1.
STEP 4: To view the box-and-whisker chart for the data, press GRAPH .
STEP 5: Press TRACE followed by and to view the five values making up the
box-and whisker chart.
STEP 6: Turn PLOT1 off by pressing STAT PLOT ENTER ENTER
2ndF QUIT .
BOX-AND-WHISKER CHART FOR A
ONE-VARIABLE DATA SET
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for creating a pie chart from count data
STEP 1: Press STAT to enter the statistics menu. Delete old data and enter the
following data set in L1 using weights in L2:
24 18 40 10
STEP 2: To construct a pie chart, first press STAT PLOT ENTER . Press ENTER
to turn PLOT1 on. Press ▼ENTER to choose one-variable data. Press ▼
2ndF L1 ENTER to enter L1 as the data list. Leave the Freq prompt
blank. Set the graph to a pie chart by pressing ▼STAT PLOT F (PIE) 1
(PIE) .
STEP 3: To view the pie chart for the data, press GRAPH .
STEP 4: Press TRACE followed by and to highlight and mark the pieces
of the pie chart.
STEP 5: Turn PLOT1 off by pressing STAT PLOT ENTER ENTER
2ndF QUIT .
PIE CHART FOR A
ONE-VARIABLE DATA SET
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for calculating statistics for a two-variable data set
STEP 1: Turn the calculator on and press STAT to enter the statistics menu. Press
A(EDIT) ENTER to access the data entry screen. Delete old data
by highlighting L1 and pressing DEL ENTER . Repeat for other lists.
STEP 2: Enter the following data set:
X Y
25 32
28 33
31 27
40 38
29 30
STEP 3: Check the data you have entered and correct any errors you may find.
To calculate the numerical descriptions of the two variables, press 2ndF
QUIT STAT C (CALC) 22_Stats. Press ENTER and the statistical
results will appear.
STEP 4: Press ▼to view the remaining statistics.
The statistics displayed are:
1. the average or mean value of the variable, or ;
2. the standard deviation assuming the data points are a sample from
a population, sx or sy;
3. the standard deviation assuming the data points represents the entire
population, σxor σy;
4. the sum of the values, ∑x or ∑y;
5. the sum of the squared values, ∑x2or ∑y2;
6. the number of data points, n;
7. the minimum variable value, xmin or ymin;
8. the maximum variable value, xmax or ymax; and
9. the sum of the xand yproducts, ∑xy.
STATISTICS FOR A
TWO-VARIABLE DATA SET
xy

18
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for drawing a scatter diagram for a two-variable data set
STEP 1: Consider the following table listing the revenue for a large corporation:
Year Revenue (in millions of dollars)
1 48.63
2 48.86
3 48.91
4 49.69
5 51.10
6 52.00
7 52.03
STEP 2: Access the statistics data entry screen and delete old data.
STEP 3: Enter the data using L1 for the year and L2 for the revenue (in millions
of dollars). Check the data and correct any errors you may find.
STEP 4: Press STAT PLOT A (PLOT1) ENTER to access the PLOT1 set up
screen. To turn PLOT 1 on, press ENTER . Press ▼ENTER
to set the data to two-variable. Set L1 for the xvariable by pressing
▼2ndF LIST A 1 ENTER . Press 2ndF LIST 2 ENTER to set L2
for the y variable. To set the graph to scatter diagram, press STAT PLOT
G(S.D.) and 3 (Scattr ).
STEP 5: Construct an autoscaled scatter diagram of this data set by pressing ZOOM
A(ZOOM) 9(Stat).
Press TRACE and press repeatedly to verify that Xmin= 1, Xmax= 7,
Ymin= 48.63, and Ymax= 52.03.
SCATTER DIAGRAM
FOR A TWO-VARIABLE DATA SET
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